Possible To Do One Line If Statement?
Apr 21, 2009Is it possible to do one line if statement in VB .NET? If so, how?
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Continue A Select Statement On Additional Line In Vb?
Oct 12, 2009How do you continue a select statement on additional line in vb
View 3 RepliesSpanning An Insert Statement On Multiple Line?
Jun 13, 2012Can anyone help me with how to use the line continuation with an INSERT Command please. This is my
objCommand.CommandText = "INSERT INTO CollectionForm" & _
"(Region,District,Circuit,AcademicYear,Term,NameOf School,SchoolCode,Stream,Shift,DateOf,OpeningDays, InstructionalDays,EnrolKg1Boys)" & [code].....
Asp.net - Adding Single Line If Statement In String.format?
Dec 20, 2011Can you set a condition inside the string.format parameter.So if i have
string.format("{0}" , if x = 7 then return "SEVEN" else return "ZERO")
Is there a way of doing this?
"Syntax Error In INSERT INTO Statement" At Line Cmd.ExecuteNonQuery()
Dec 8, 2011I'm trying to input data from my VB program into a Access database but I got a "Syntax error in INSERT INTO statement" error message at line
cmd.ExecuteNonQuery()
Here is my code:
Dim connStr As String = "Provider=Microsoft.ACE.OLEDB.12.0;" & _
"Data Source=FP Library Catalogue System Database.accdb"
Dim SQL As String = "INSERT INTO User ([userID],[password],[fullName],[gender],[userType]) " & _
"VALUES (@userID,@password,@fullName,@gender,@userType)"
[code]....
VB - If Statement - Stop The Last Line, Begvalue = Begvalue - Depreciation, From Showing Up In The Listbox
May 10, 2011 To do is stop the last line, begvalue = begvalue - depreciation, from showing up in the listbox. I tried an if statement but that doesn't work
Depreciation to a Salvage Value of 0. For tax purposes an item may be depreciated over a period of several years, n. With the straight-line method of depreciation, each year the item depreciates by 1/nth of its original value. With the double-declining-balance method of depreciation, each year the item depreciates by 2/nths of its value at the beginning of that year. (In the last year, it is depreciated by its value at the beginning of the year.) Write a program that performs the following tasks:
Requests a description of the item, the year of purchase, the cost of the item, the number of years to be depreciated (estimated life), and the method of depreciation. The method of depreciation should be chosen by clicking one of two buttons. Displays a depreciation schedule for the item similar to the schedule shown in Figure 6.23. Figure 6.23. Depreciation schedule for Programming Project 7. [URL]
This is the code I have so far:
Dim yearpurchased, cost, life, depreciation, begvalue, total As Double
Dim item As String
[CODE].........................
I need to get the last two numbers on the bottom right of the table.
C# - Building SQL "where In" Statement From List Of Strings In One Line
Jun 7, 2011I have a List(Of String) which corresponds to "types" on our database table. We are using the DB2 ADO.NET provider and my final query needs to look something like this: select * from table where type in (@type1, @type2, @type3, @type4).
In the past, I've built the list of query parameters / host variables using a ForEach loop, but I would really like to figure out a way to build them in one line. Of course, I can join all of the strings, but adding the "@" and the incrementing digit is giving me headaches. Anyone have any ideas on how to do this?
Make An If Statement The "if Textbox2.text Has Only One Line Of Text?
Jul 8, 2010how can i make an if statement the "if textbox2.text has only one line of text then..."
View 3 Replies[2008] New Datarow - "Syntax Error In INSERT INTO Statement" On The Da.update Line"
Mar 15, 2009I have finally been dragged kicking and screaming into the 21st Century and I'm learning VB.NET
[Code]....
I get a "Syntax error in INSERT INTO statement" on the da.update line. The bulk of the code is copied from a working section of the program, I have just added the "newrow" stuff. I am pretty confident I have the names of all the fields correct.
VS 2008 Open A Txt File, Read Line By Line, Decode Each Line Into An Array And Display?
Oct 14, 2011what i need to do is open a txt file, read line by line, decode each line into an array and display. Now all works ok apart from one line.
sTextLine = objReader.ReadLine() <-- Value of string cannot be converted.
full code here
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Dim objReader As New System.IO.StreamReader(sOpenFile.Text)
Dim sTextLine As New ArrayList()
Dim sText As String = ""
Dim i As Integer = 0
[code]....
Read Text From A Listbox Line By Line And Put Current Line In A Label?
Jan 16, 2011how to read text from a listbox line by line and put current line in a label?
View 3 RepliesReading A File Line By Line That Within The Line The Values Are Delimited By "?
Dec 1, 2011How would i go about reading a file Line by Line that within that line The values are delimited by " Example of the data:
"bob" "cat" "1243"
"steve" dog" "6789"
I've started this with this code but not sure how to go about the next stage:
Using MyReader As New _
Microsoft.VisualBasic.FileIO.TextFieldParser(My.Application.Info.DirectoryPath & "Records28112011.jd")
MyReader.TextFieldType = FileIO.FieldType.Delimited
[code]....
VS 2008 Reading A TextBox Line By Line And Using SubString On Each Line?
Jul 5, 2010I am trying to read in a TextBox line by line and take the first 7 characters of each line and output everything in another TextBox.This is what I have so far.
Dim line, lines() As String
lines = TextBox1.Text.Split(Environment.NewLine)
Dim i As Integer = 0
[code].....
SQL Statement Doesn't Work - INSERT Statement Works Fine In The Form Load But Not In The Button Click Event?
Oct 14, 2009See
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
[CODE]...
The problem, The INSERT statement works fine in the form load but not in the button click event?
If <expression> Then <statement [:statement]> Else [statements] In Concrete Form?
Jan 1, 2010I was convinced that If <expression> Then <statement [:statement]> Else [statements] in concrete form of If a = b Then SayHello() Else SayBye() End has sense. I read article on msdn on If-then-else, but I forgot why I was reading, so I concluded, that snippet above means this
If a = b Then HelloIsSaid : IsNotEnded Else ByeIsSaid : IsEnded But I have tested it now, and I see, that Else without statement is nothing more than decoration. It would be pretty good if it had function I described. Do you think its good request? Or do you know any circumstance where this Else has some function?
Making A Next Statement Into A Loop Statement In Visual Basic?
Jun 8, 2009y friend and I are re-learning Visual Basic, and we are stumped on this bit of code.
For intAsterisks As Integer = 0 To intLine - 1
lblAsterisks.Text = lblAsterisks.Text + "*"
Next
Sql - Perform An Inline Select Statement In A LINQ Statement?
Jun 24, 2011I have the following SQL:
[Code]...
I want to put it (the select count statement) in this LINQ statement so I can get the sales count in my linq statement: Dim TheLeads = (From L In DB.Leads Where L.IsDeleted = False Select L).ToList() Is this possible to do in LINQ?
Reading Line By Line Txt And Preview The Line In Textbox?
Sep 16, 2010i need the app to preview the line in textbox in timeintervalof 1 s (can be change)nd when it will reach to the end it close the text file and andreread it after let say 1 m ..
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim myStream As Stream = Nothing
[code].....
Change The Exit Statement To A Continue Statement?
Feb 23, 2009add an if statement and an exit statement to my do loop that exits when my future value (FV) is greater than 1000, then to change the exit statement to a continue statement so my loop will continue even though my fv is greater then 1000, point is to get this to run even though my if statement doesnt do anything. problem something wrong in my code and an exception error (xception of type 'System.OverflowException' occurred in mscorlib.dll)
so can someone show me where or why I have an error is, what am I overthinking now! I could use a hint, OMG i could use a tutor for that matter
[Code]...
ElseIf Statement Into A Select Case Statement?
Jun 23, 2010A co-worker wants to convert the following IfThenElseIf statement into a Select Case statement.
Explain why this is not possible.
If temperature = 100 Then
X = 0
ElseIf population > 1000 Then
X = 1
ElseIf rate < .1 Then
X = -1
End If
SQL Statement :: Nearly Working Just Cant Get Form Values In Statement?
Aug 4, 2010I cant get this SQL statement to insert any of the values in the form to add to the database
sql
sql = "INSERT INTO prevresults (ExamDate, ExamTime, CorrectAnswers, PassPercentage) VALUES (date.now, time.now, rightanswers, percentage.text)"
[code]....
Return Statement Which Is True In An If Statement?
May 24, 2012Return statement which is true in an if statement
View 3 RepliesBreak Up The Code In A Method Body Into Statement By Statement Symbols/"tokens"?
Apr 22, 2011I'm writing something that will examine a function and rewrite that function in another language so basically if inside my function F1, i have this line of code var x=a.b(1) how do i break up the function body into symbols or "tokens"?I've searched around and thought that stuff in System.Reflection.MethodInfo.GetMethodBody would do the trick however that class doesn't seem to be able to have the capabilities to do what i want..dit 2:basically what I'm trying to do is to write a program in c#/vb and when i hit F5 a serializer function will (use reflection and) take the entire program (all the classes in that program) and serialize it into a single javascript file. of course javascript doesn't have the .net library so basically the C#/VB program will limit its use of classes to the .js library (which is a library written in c#/vb emulating the framework of javascript objects)
View 4 RepliesExceptions - Can The "Throw" Statement Exist In A Block With No Try/catch Statement
Oct 5, 2009how to use them then before, but am still a little confused with a few aspects. Here goes:
1.) Lets say you have a method that checks for a certain condition(s) and if it fails Throws an exception. Does it have to be in a try/catch block? Meaning can the "Throw" statement exist in a block with no try/catch statement?
2.) Now lets say we have a method that has a try catch block and in it there is a throw statement. When the throw statement is executed does it first try to find an appropriate catch block in the same method or does it immediately go back to the calling method without looking at the catch statements in the current method where the exception was thrown?
3.) I created a custom exception class that inherits from ApplicationException. Next I created a method which has a catch block that catches this type of exception and does some action. Is the System(i.e CLR) smart enough to throw an exception of this type, or does it only throw exceptions from SystemException?
4.) I know that some people are more liberal in their use of exceptions and others use it more sparingly when truly strange stuff happen like the DB going down. I am writing code where I am getting some info back from the database, converting it and then storing it. Sometimes there might be data that comes back from the database and other times the field is empty and the Null value comes back. Therefore in the instances where Null comes back from the database I should not convert the value to anything, since I will get an error. What should I do in this situation? Should I let the CLR throw the exception when it goes to convert the Null value or should I check for the Null value and if it exists not convert?
5.) In general when I throw exceptions, is it sensible to only throw exceptions of the type Application Exception or are there instances where the programmer throws exceptions of the type SystemException?
Make A 'like' Statement Or Use Some Kind Of Wildcard To Make The Statement Not Case Sensitive?
Jul 11, 2010I'm building a listview search feature in my app. (See the code below). It works really well, except if you search "T" then the code removes all items, if you search "t" then it removes every item except for those starting with "t". Is there any way to make a 'like' statement, or use some kind of wildcard to make the statement not case sensitive?
For Each itm As ListViewItem In ListView2.Items
If itm.Text Like TextBox1.Text & "*" Or itm.SubItems.Item(1).Text Like TextBox1.Text & "*" Then
Else
[code].....
Parsing Multi-line Clipboard Text Into A Single Line And Pasting Into A Textbox?
Feb 7, 2011a user copies multiple lines of text (say, from an email) into the clipboard. Based on my observations, when one tries to paste the text into a single-line textbox, only the first line is actually pasted in. (I am aware that the "obvious" solution would be to set the Multiline property to True, but there are reasons I am looking to avoid this and to put multi-line data into a single line.)
In the TextChanged event handler, I wrote code that parses the clipboard data to successfully convert it to a single-line, comma-delimited format.
Private Sub txtMassTrackingNo_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) _
Handles txtMassTrackingNo.TextChanged
[Code].....
Show The Line Number Of The Line Of Code That Caused An Exception Within A Try...Catch Block?
Jan 29, 2009Is there a way to show the line number of the line of code that caused an exception within a Try...Catch block?
View 5 RepliesVS 2008 : Read A File Line By Line Into An Array But It Skips The Item At Index:3?
Mar 17, 2010I'm trying to read a file line by line into an array but It skips the item at index:3 I have it msgboxing just to make sure and it wont even touch it.
Dim Btn As Button = DirectCast(sender, Button)
Dim path As String = Application.StartupPath & "Libraries" & Btn.Text.Replace(" ", "_") & ".ipt"
Dim i As Integer = 0
Dim lines As String() = IO.File.ReadAllLines(path)
[code]....
VS 2010 Read Through A Textfile Line By Line Checking For And Removing Duplicate Values?
May 16, 2012How do i read through a textfile line by line checking for and removing duplicate values?
View 1 RepliesReading A .txt File Line By Line Converting It Into A String Then Putting It Into A Listbox
Apr 1, 2011I'm having trouble with reading a .txt file line by line, converting it into a string, then putting it into a listbox. When I execute I get an error saying "IndexOutOfRangeException was unhandled" Here is my
[Code]...